/*
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 * and open the template in the editor.
 */

package Servlets;

import Beans.Ciudad;
import Beans.Hotel;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.UnavailableException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Marco
 */
public class MostrarImg extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    private Connection con;
    public void init() throws ServletException{
        try{
            Class.forName("com.mysql.jdbc.Driver").newInstance();
            con=DriverManager.getConnection("jdbc:mysql://localhost/Agencia","root","root");
        }
        catch(Exception ex){
            throw new UnavailableException("Error: "+ex.getMessage());
        }
    }
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
            int id=Integer.parseInt(request.getParameter("id"));
            Hotel h= BuscarHotel(id);
            if(h.getUnaFoto()!=null){
            byte[] img=h.getUnaFoto();
                response.setContentType("image/jpeg");
                OutputStream o = response.getOutputStream();
                o.write(img);
                o.flush(); 
                o.close();
            }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
    public Hotel BuscarHotel(int id) throws UnavailableException{
   
   try {            
                PreparedStatement cs= con.prepareCall("SELECT * FROM Hotel WHERE IdHotel="+id);
                ResultSet rs = cs.executeQuery();
                 Hotel h=null;
              if(rs.next()){
                     h = new Hotel(rs.getString("Nombre"),rs.getInt("Clasificacion"),null,null);
                     h.setIdHotel(rs.getInt("IdHotel")); 
                     Blob blob=rs.getBlob("Foto");
                     if(blob!=null){
                        byte[] data=blob.getBytes(1, (int)blob.length());
                        h.setUnaFoto(data);
                     }
              }              
        return h;
        }
    catch (SQLException ex){
                throw new UnavailableException("Error! :" + ex.getMessage());
            }
    
    }
}
